621073677 has 12 divisors (see below), whose sum is σ = 963298176. Its totient is φ = 354899160.

The previous prime is 621073643. The next prime is 621073697. The reversal of 621073677 is 776370126.

It is not a de Polignac number, because 621073677 - 2⁶ = 621073613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (621073697) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2112349 + ... + 2112642.

It is an arithmetic number, because the mean of its divisors is an integer number (80274848).

Almost surely, 2^621073677 is an apocalyptic number.

It is an amenable number.

621073677 is a deficient number, since it is larger than the sum of its proper divisors (342224499).

621073677 is a wasteful number, since it uses less digits than its factorization.

621073677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4225008 (or 4225001 counting only the distinct ones).

The product of its (nonzero) digits is 74088, while the sum is 39.

The square root of 621073677 is about 24921.3498229931. The cubic root of 621073677 is about 853.1938329735.

The spelling of 621073677 in words is "six hundred twenty-one million, seventy-three thousand, six hundred seventy-seven".